<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
    private $_id;

    /**
     * Authenticates a user.
     * The example implementation makes sure if the username and password
     * are both 'demo'.
     * In practical applications, this should be changed to authenticate
     * against some persistent user identity storage (e.g. database).
     * @return boolean whether authentication succeeds.
     */
    public function authenticate()
    {
        $o_account = Account::model()->findByAttributes(array("identity"=>$this->username));
        
        if(!isset($o_account))
        {
            $this->errorCode=self::ERROR_USERNAME_INVALID;
        }
        else if($o_account->password !== $this->password)
        {
            $this->errorCode=self::ERROR_PASSWORD_INVALID;
        }
        else 
        {
            if (is_null($o_account->authority) || $o_account->authority == "" )
            {
                $o_account->authority = Account::REGISTER;
            }

            $this->_id = $o_account->identification;
            $this->setState("authority", $o_account->authority);
            $this->errorCode = self::ERROR_NONE;
        }

        return !$this->errorCode;
    }//End authenticate

    public function getId()
    {
        return $this->_id;
    }
}